Medium (5.3). EPSS 0.6% chance of exploitation in the next 30 days.
Frappe is a full-stack web application framework. Prior to 16.20.0 and 15.110.0, users without write access could attach files to any doctype through file-handling API endpoints such as add_attachments. This issue is fixed in versions 16.20.0 and 15.110.0.